package top.huhuiyu.study.servlet.cpuinfo;

import top.huhuiyu.study.dao.TbCpuInfoDAO;
import top.huhuiyu.study.entity.Result;
import top.huhuiyu.study.entity.TbCpuInfo;
import top.huhuiyu.study.util.JsonUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

@WebServlet(name = "cpuinfoQueryByIdServlet", urlPatterns = "/cpuinfo/querybyid.action")
public class QueryByIdServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("application/json");
        PrintWriter writer = resp.getWriter();
        try {
            Integer id = Integer.parseInt(req.getParameter("id"));
            TbCpuInfo info = TbCpuInfoDAO.queryById(id);
            if (info == null) {
                Result<String> result = Result.fail("数据不存在", null);
                writer.println(JsonUtils.stringify(result));
            } else {
                Result<TbCpuInfo> result = Result.success("", info);
                writer.println(JsonUtils.stringify(result));
            }
        } catch (Exception e) {
            e.printStackTrace();
            Result<String> result = Result.fail("查询发生错误", null);
            writer.println(JsonUtils.stringify(result));
        }

    }
}
